Since there’s a dash on two of the sides, that means they equal in length.
So I just did 2(3x+5) since theres 2 sides the same. Since we know what the equations are for all three sides, we add them together and set it equal to 97. Then we solve for x. Look at my picture for the work.
As you can see, we get x= 9
The question is looking for the base so you plug in 9 into the base. 3(9)+5 which we get 32.
Final answer: 32cm
Please let me know if this helped!! Or rate it the brainlist
